[
https://issues.apache.org/jira/browse/OPENMEETINGS-247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
George Kirkham reopened OPENMEETINGS-247:
-----------------------------------------
Apologies, there was a fault in the diff file that I uploaded. It contained two
spaces with must not exist.
I will attach a new diff file which corrects these two errors.
Thanks,
George Kirkham
> Make document conversion quality an administrator changeable option
> -------------------------------------------------------------------
>
> Key: OPENMEETINGS-247
> URL: https://issues.apache.org/jira/browse/OPENMEETINGS-247
> Project: Openmeetings
> Issue Type: Improvement
> Components: Converters
> Affects Versions: 2.0 Apache Incubator Release
> Environment: Debian Squeeze,
> openmeetings-2.0.0.r1328537-20-04-2012_2319.tar.gz (Build #43)
> Reporter: George Kirkham
> Labels: configuration, conversion, converter, quality
> Fix For: 2.0 Apache Incubator Release
>
> Attachments: SwfToolsZoom1.diff
>
>
> I have the need to improve the quality of converted PDF, Word or PowerPoint
> files, that is increase the resolution of the conversion process for Word
> PDF and PowerPoint files are converted to *.swf files.
> Currently the quality of any images within converted documents is so poor
> that we cannot clearly read the text within the images contained in documents.
> This may be able to be resolved by allowing the quality of file conversion to
> be adjustable in the administration section of OpenMeeting or in the
> config.xml file.
>
> Checking the OpenMeetings log it would seem that it is using pdf2swf without
> any "-j" setting, I found this in the log file;
> args: [/usr/local/bin/pdf2swf, -s, insertstop, -s, poly2bitmap, -I,
> /user/lib/red5/webapps/openmeetings/upload/files/le8...
> Checking some of the source code I noticed that in the code these does not
> appear that the "-j" option is being used, therefore I guess the default
> value of 85% is being used when converting documents.
>
> -j , --jpegquality quality Set quality of embedded jpeg pictures to
> quality. 0 is worst (small), 100 is best (big). (default:85)
> zoom=<dpi> the resultion (default: 72)
> I could not find any settings in the
> /usr/lib/red5/webapps/openmeetings/config.xml file for the pdf2swf arguments.
>
> And I don't think that I can change this in OpenMeetings, it is most likely
> set somewhere in the source code?
>
> Sadly I have never managed to successfully build OpenMeetings using "ant",
> but checking the source code, maybe the place to add the "-j" option may be
> in;
> ./openmeetings/trunk/singlewebapp/src/org/openmeetings/app/documents/GenerateSWF.java
> line 216
> // Create the Content of the Converter Script (.bat or .sh file)
>
> I wonder if the developers would be able to add the "-j" option and a "-s
> zoom=xxx" option as a user setting, and allow this value to be adjustable by
> administrators?
> For example, I made the following changes so I could test the JpegQuality and
> zoom options;
> /singlewebapp/src/install_step1_EN.vm
> ./src/.svn/text-base/install_step1_EN.vm.svn-base
> <fieldset id="userConf1">
> <legend>Converters</legend>
> <li>
> <label for="swftools_path">SWFTools Path</label>
> <input name="swftools_path" id="swftools_path" size="27"
> title="Enter the path to swftools for example C:/swftools
> (Windows) or leave blank if swftools is a known to your system path"
> type="text" />
> <p><i>You can test if swftools is installed into system path by
> opening a shell or cmd-prompt and type pdf2swf<br/>
> If this shows a list of options leave this field blank
> otherwise you have to specify the path to pdf2swf on your system<br/>
> see also <a
> href="http://incubator.apache.org/openmeetings/installation.html";
> target="_blank">Installation</a></i></p>
> </li>
> <li>
> <label for="swftools_zoom">SWFTools Zoom</label>
> <input name="swftools_zoom" id="swftools_zoom" size="4"
> value="100"
> title="Enter the dpi that swftools will use for PDF to SWF
> conversion" type="text" />
> <p><i>You can test if swftools is installed into system path by
> opening a shell or cmd-prompt and type pdf2swf<br/>
> Enter the dpi that swftools will use for PDF to SWF
> conversion. Default is 100 dpi.<br/>
> see also <a
> href="http://incubator.apache.org/openmeetings/installation.html";
> target="_blank">Installation</a></i></p>
>
> </li>
> <li>
> <label for="swftools_jpegquality">SWFTools JPEG Quality</label>
> <input name="swftools_jpegquality" id="swftools_jpegquality"
> size="3" value="85"
> title="Enter the quality of embedded jpeg pictures to quality.
> 0 is worst (small), 100 is best (big). (default:85)" type="text" />
> <p>
> <i>You can test if swftools is installed into system path by
> opening a shell or cmd-prompt and type pdf2swf<br/>
> Enter the quality of embedded jpeg pictures to quality.
> 0 is worst (small), 100 is best (big). (default:85)<br/>
> see also <a
> href="http://incubator.apache.org/openmeetings/installation.html";
> target="_blank">Installation</a></i>
> </p>
> </li>
>
> =====================================================================================================
>
> ./src/org/openmeetings/app/installation/ImportInitvalues.java:298:
> ./src/org/openmeetings/app/installation/.svn/text-base/ImportInitvalues.java.svn-base:298
>
>
> cfgManagement.addConfByKey(3, "swftools_zoom", cfg.swfZoom,
> null,
> "dpi for conversion of PDF to SWF");
> cfgManagement.addConfByKey(3, "swftools_jpegquality",
> cfg.swfJpegQuality, null,
> "compression quality for conversion of PDF to
> SWF");
> ----------------------------------------------------------------------------------
> ./src/org/openmeetings/app/installation/InstallationConfig.java:20:
> ./src/org/openmeetings/app/installation/.svn/text-base/InstallationConfig.java.svn-base:20:
> //SWFTools PDF to SWF conversion settings
> public String swfZoom = "";
> public String swfJpegQuality = "";
> + ", mailUseTls=" + mailUseTls + ", swfZoom=" +
> swfZoom
> + ", swfJpegQuality=" + swfJpegQuality + ",
> swfPath=" + swfPath
> ----------------------------------------------------------------------------------
> ./src/org/openmeetings/servlet/outputhandler/Install.java
> ./src/org/openmeetings/servlet/outputhandler/.svn/text-base/Install.java.svn-base:245
>
> cfg.swfZoom =
> httpServletRequest.getParameter("swftools_zoom");
> cfg.swfJpegQuality =
> httpServletRequest.getParameter("swftools_jpegquality");
>
> ----------------------------------------------------------------------------------
> =====================================================================================================
> ./src/org/openmeetings/app/documents/GenerateSWF.java:
> ./src/org/openmeetings/app/documents/.svn/text-base/GenerateSWF.java.svn-base:
> private String getSwfZoom() {
> String valueForSwfZoom =
> cfgManagement.getConfValue("swftools_zoom", String.class, "");
> // WARNING CODE NOT COMPLETE: If SWFTools zoom (dpi) should be
> an integer between 50 and 600 with a default value of 100 dpi
> if (valueForSwfZoom.equals("")) {
> valueForSwfZoom = "100";
> }
> return valueForSwfZoom;
> }
> private String getSwfJpegQuality() {
> String valueForSwfJpegQuality =
> cfgManagement.getConfValue("swftools_jpegquality", String.class, "");
> // WARNING CODE NOT COMPLETE: If SWFTools JPEG Quality should
> be an integer between 1 and 100, with a default value of 85
> if (valueForSwfJpegQuality.equals("")) {
> valueForSwfJpegQuality = "85";
> }
> return valueForSwfJpegQuality;
> }
> public HashMap<String, String> generateSwf(String current_dir,
> String originalFolder, String destinationFolder, String
> fileNamePure) {
>
> // Create the Content of the Converter Script (.bat or .sh File)
> String[] argv = new String[] {
> getPathToSwfTools() + "pdf2swf" + execExt, "-s",
> "insertstop", // insert Stop command into every
> frame
> "-s","poly2bitmap",
> //http://www.swftools.org/gfx_tutorial.html#Rendering_pages_to_SWF_files
> "-i", // change draw order to reduce pdf
> complexity
> "-j", " " + getSwfJpegQuality(), // JPEG
> Quality to 100
> "-s", " zoom=" + getSwfZoom(), // set zoom dpi
> to 200
> originalFolder + fileNamePure + ".pdf",
> destinationFolder + fileNamePure + ".swf" };
> return ProcessHelper.executeScript("generateSwf", argv);
> }
> =====================================================================================================
>
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
